As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE ACCOMPLISHMENT OF ALLEGIANT EO E5331–0001 REV 00, RELATED TO AD 2020–18–06 & SB 53–1269 REV 02 & 53–1270 REV 02. A CRACK WAS FOUND AT THE LH SIDE CENTER FUSELAGE FRAME FOOT COUPLING FR43, TOP FASTENER HOLE AT THE FRAME SIDE ONLY. AD 2020–18–06 & SB 53–1269 REV 02 ALLOWS THE USAGE OF REPAIR DRAWING R53370233 ISSUE B FOR THIS TYPE OF DISCREPANCIES. THIS REPAIR IS COVERED BY ALLEGIANT ENGINEERING ORDER R5331-0053.